If Microsoft makes a move towards blocking this, I guess the EU competition commissioner will be informed by google right away.

And the EU competition commissioner are not really known for handing out uselessly small fees.

If Microsoft makes an attempt to block this, they will get issued a fine none of us has seen before, I am quite sure about that. The EU commissioner will say: "Fining them obviously did not change their behavior, when they repeat their actions, we need to make sure the message sinks in this time around"